RCW 82.04.220

Business and occupation tax imposed.

(1) There is levied and collected from every person that has a substantial nexus with this state, as provided in RCW 82.04.067, a tax for the act or privilege of engaging in business activities. The tax is measured by the application of rates against value of products, gross proceeds of sales, or gross income of the business, as the case may be.

(2)(a) A person who has a substantial nexus with this state in the current calendar year under the provisions of RCW 82.04.067, based solely on the person's property, payroll, or receipts in this state during the current calendar year, is subject to the tax imposed under this chapter for the current calendar year only on business activity occurring on and after the date that the person established a substantial nexus with this state in the current calendar year.

(b) This subsection (2) does not apply to any person who also had a substantial nexus with this state during:

Findings—Intent—2010 1st sp.s. c 23: "(1) The legislature finds that out-of-state businesses that do not have a physical presence in Washington earn significant income from Washington residents from providing services or collecting royalties on the use of intangible property in this state. The legislature further finds that these businesses receive significant benefits and opportunities provided by the state, such as: Laws providing protection of business interests or regulating consumer credit; access to courts and judicial process to enforce business rights, including debt collection and intellectual property rights; an orderly and regulated marketplace; and police and fire protection and a transportation system benefiting in-state agents and other representatives of out-of-state businesses. Therefore, the legislature intends to extend the state's business and occupation tax to these companies to ensure that they pay their fair share of the cost of services that this state renders and the infrastructure it provides.

(2)(a) The legislature also finds that the current cost apportionment method in RCW 82.04.460(1) for apportioning most service income has been difficult for both taxpayers and the department to apply due in large part (i) to the difficulty in assigning certain costs of doing business inside or outside of this state, and (ii) to its dissimilarity with the apportionment methods used in other states for their business activity taxes.

(b) The legislature further finds that there is a trend among states to adopt a single factor apportionment formula based on sales. The legislature recognizes that adoption of a sales factor only apportionment method has the advantages of simplifying apportionment and making Washington a more attractive place for businesses to expand their property and payroll. For these reasons, the legislature adopts single factor sales apportionment for purposes of apportioning royalty income and certain service income for state business and occupation tax purposes.

(c) Nothing in this act may be construed, however, to authorize apportionment of the gross income or value of products taxable under the following business and occupation tax classifications: Retailing, wholesaling, manufacturing, processing for hire, extracting, extracting for hire, printing, government contracting, public road construction, the classifications in RCW 82.04.280(1) (b), (d), (f), and (g), and any other activity not specifically included in the definition of apportionable activities in RCW 82.04.460.